Set the system environment variables following the instructions below.

1. Open the Start menu, right-click Computer and select Properties.
2. Click Advanced System Settings, located at the left side of the System window.
3. In the System Properties window, click Environment Variables to display the Environment Variables window.
4. Click New... to add a new System Environment variable.
5. Add the System Environment variables and values shown in the table below:

   Variable Name	Variable Value
   JAVA_HOME	C:\Program Files\Java\jdk1.7.0_21
   JAVA_OPTS	-Xmx1024m -XX:MaxPermSize=512m -Dsun.lang.ClassLoader.allowArraySyntax=true
   MAVEN_HOME	C:\apache-maven-3.0.4
   MAVEN_OPTS	-Xmx1024m -XX:MaxPermSize=512m -XX:ReservedCodeCacheSize=128m -Dsun.lang.ClassLoader.allowArraySyntax=true -ea

   Note: Java and Maven Home Variables

   The values you set for JAVA_HOME, MAVEN_HOME, and depend on where you installed Java and Maven.

6. Select the Path system variable, and click Edit...
7. Append the values below to the end of the Path variable value:

   ;%JAVA_HOME%\bin;%MAVEN_HOME%\bin;
   

# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
        . ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/bin
export PATH
JAVA_HOME=/home/USERNAME/tools/jdk1.7.0_21
export JAVA_HOME
JAVA_OPTS='-Xmx1024m -XX:MaxPermSize=512m -Dsun.lang.ClassLoader.allowArraySyntax=true'
export JAVA_OPTS
MAVEN_HOME=/home/USERNAME/tools/apache-maven-3.0.4
export MAVEN_HOME
MAVEN_OPTS='-Xmx1024m -XX:MaxPermSize=512m -XX:ReservedCodeCacheSize=128m -Dsun.lang.ClassLoader.allowArraySyntax=true -ea'
export MAVEN_OPTS
PATH=$PATH:$JAVA_HOME/bin:$MAVEN_HOME/bin
export PATH